C313212111113331323312111133133313331333132233133313222313113221   >>    C31321211111333132331211113313331333133313223313331322231311322   <<    C313212111113331323312111133133313331333132233133313222313113223   >>      C313212111113331323312111133133313331333132233133313222313113222   >>